PROPERTY, PLANT AND EQUIPMENT

6 Months Ended

12 Months Ended

Jun. 30, 2023

Dec. 31, 2022

Notes and other explanatory information [abstract]

PROPERTY, PLANT AND EQUIPMENT

9. PROPERTY, PLANT AND EQUIPMENT

During the six months ended 30 June 2023, the Group acquired assets at a cost of CNY6 (US$1) (six months ended 30 June 2022: CNY6).

None of assets were disposed by the Group during the six months ended 30 June 2023 (six months ended 30 June 2022: CNY3).

No impairment loss was recognized for the six months ended 30 June 2023 and 2022.

11. PROPERTY, PLANT AND EQUIPMENT

	Buildings			Machinery and equipment			Motor vehicle			Office and other equipment			Total
		CNY			CNY			CNY			CNY			CNY
Cost
As of January 1, 2021		46			1,231			2,528			700			4,505
Additions		—			—			—			28			28
Disposal		—			(28	)		(42	)		—			(70	)
Foreign exchange difference		—			(26	)		—			—			(26	)
As of December 31, 2021		46			1,177			2,486			728			4,437
Accumulated depreciation
As of January 1, 2021		(9	)		(1,159	)		(1,613	)		(521	)		(3,302	)
Depreciation charge		(3	)		(13	)		(441	)		(53	)		(510	)
Disposal		—			24			40			—			64
Foreign exchange difference		—			26			—			—			26
As of December 31, 2021		(12	)		(1,122	)		(2,014	)		(574	)		(3,722	)
Net book value
As of January 1, 2021		37			72			915			179			1,203
As of December 31, 2021		34			55			472			154			715
Cost
As of January 1, 2022		46			1,177			2,486			728			4,437
Additions		—			8			—			9			17
Disposal		—			—			(16	)		(93	)		(109	)
As of December 31, 2022		46			1,185			2,470			644			4,345
Accumulated depreciation
As of January 1, 2022		(12	)		(1,122	)		(2,014	)		(574	)		(3,722	)
Depreciation charge		(3	)		(22	)		(259	)		(20	)		(304	)
Disposal		—			—			15			90			105
		(15	)		(1,144	)		(2,258	)		(504	)		(3,921	)
Net book value
As of December 31, 2022		31			41			212			140			424
As of December 31, 2022 (US$)		4			6			31			20			61

There was no impairment loss on property, plant and equipment for the years ended December 31, 2020, 2021 and 2022.